Patent US3812748A successfully refreshed from Google Patents.
US3812748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass cutting device
Assignee: ALL-AMERICAN ACQUISITION CORP A CORP OF DE
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Filing: 1972-10-17
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Granted: 1974-05-28
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Expires: 1992-10-17
Abstract
Abstract A device for cutting glass which can cut a sheet of glass of indeterminate length has a central bridge member with a channel formed therein. It has one or two outwardly extending arms which may be perpendicular to the bridge member. A glass cutter wheel is interlockable with the central bridge member channel through a cutting support member. The bridge member has distance markings inscribed on it. The cutter support member is adapted to be engaged by a pointer member which will indicate glass cutter position in respect to the bridge member.
Inventors
- 👤 I Nausbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:22
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/10; C03B33/12; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0333; Y10T83/0385
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
An infinitely adjustable glass-scribing device comprising, a frame means including a first leg means attached thereto, said frame means further including a bridge member having at least one longitudinal channel extending over a substantial portion of its longitudinal length, said channel having measuring indicia associated therewith, a scribe means, a holding means for holding said scribe means, said holding means including an integral key means adapted for slideable movement along said channel, said key means having at least two parallel sides, the distance between said parallel sides being slightly less than the width of said channel, thereby preventing rotation of said holding means within said channel, an indicating means for pointing to said indicia, said indicating means being attached to said holding means, and a locking means attached to said key means for selectively locking said holding means at any given position along said channel, wherein force applied to said frame means is substantially fully transmitted to said scribe means through said holding means during the scribing process.
Claim 2
Dependent Claim
168 words
An infinitely adjustable glass-scribing device comprising, a frame means including a first leg means attached thereto, said frame means further including a bridge member having at least one longitudinal channel extending over a substantial portion of its longitudinal length, said channel having measuring indicia associated therewith, a scribe means, a holding means for holding said scribe means, said holding means including an integral key means adapted for slideable movement along said channel, said key means having at least two parallel sides, the distance between said parallel sides being slightly less than the width of said channel, thereby preventing rotation of said holding means within said channel, an indicating means for pointing to said indicia, said indicating means being attached to said holding means, and a locking means attached to said key means for selectively locking said holding means at any given position along said channel, wherein force applied to said frame means is substantially fully transmitted to said scribe means through said holding means during the scribing process.
Claim 3
Dependent Claim
62 words
The invention of claim 1, wherein said frame means further includes a second leg means extending perpendicularly from said bridge member, each of said leg means including a straight foot section at the end thereof furthest removed from said bridge member, and wherein the edges of said foot sections define a plane through which the tip of said scribe means slightly extends.
Claim 4
Dependent Claim
54 words
The invention of claim 2, wherein said locking means includes a threaded shaft attached to said key means, and a threaded nut means for engaging such threaded shaft, wherein said holding means may be selectively locked to said frame means by rotating said nut down such shaft until said nut is secured hand tight.
Claim 5
Dependent Claim
14 words
The invention of claim 3, wherein said threaded nut means is a wing nut.
Claim 6
Dependent Claim
20 words
The invention of claim 4, wherein the inward surface of one of said leg means forms an edge guide means.
Claim 7
Dependent Claim
55 words
The invention of claim 5, when said scribe means is a rotatable cutter wheel attached to the tip of said holding means by a pin means, and further, wherein the plane defined by the rotation of said cutter wheel is substantially parallel to the plane defined by the inside surface of said edge guide means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |